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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (Airbag System (Except Hybrid) - Diagnostic Codes (1 Of 3)) >> AIRBAG SYSTEM (for Gasoline Model) >> DTC B1612: Front Airbag Sensor Lost Communication (RH); DTC B1613: Front Airbag Sensor Initialization Error (RH) [06/2018 - ] >> Description

DTC B1612: Front Airbag Sensor Lost Communication (RH); DTC B1613: Front Airbag Sensor Initialization Error (RH) [06/2018 - ]: Description

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The front airbag sensor RH circuit consists of the airbag ECU assembly and front airbag sensor RH.

The front airbag sensor RH detects impacts to the vehicle and sends signals to the airbag ECU assembly to determine if the airbags and pretensioners should be deployed.

These DTCs are stored when a malfunction is detected in the front airbag sensor RH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1612 Front Airbag Sensor Lost Communication (RH)
  • The airbag ECU assembly detects a line short, short to ground or B+, or an open in the front airbag sensor RH circuit.
  • Front airbag sensor RH malfunction
  • Airbag ECU assembly malfunction
  • Instrument panel wire
  • Engine room main wire
  • Front airbag sensor RH
  • Airbag ECU assembly
Comes on Does not apply to test/check mode
B1613 Front Airbag Sensor Initialization Error (RH)
  • The airbag ECU assembly detects a line short, short to ground or B+, or an open in the front airbag sensor RH circuit.
  • Front airbag sensor RH malfunction
  • Airbag ECU assembly malfunction
  • Instrument panel wire
  • Engine room main wire
  • Front airbag sensor RH
  • Airbag ECU assembly
Comes on Does not apply to test/check mode